EP 2886675 B1 20190522 - High strength steel alloy and strip and sheet product made therefrom
Title (en)
High strength steel alloy and strip and sheet product made therefrom
Title (de)
Hochfeste Stahllegierung und daraus hergestelltes Band- und Blechprodukt
Title (fr)
Alliage d'acier à haute résistance et feuille de bande et produit fabriqué à partir de celui-ci
Publication
Application
Priority
US 201361919081 P 20131220
Abstract (en)
[origin: EP2886675A2] An alloy is disclosed that provides a unique combination of very high strength, toughness, and ductility. The alloy can be characterized by the following weight percent composition. C 0.3-0.6 Mn 3.0-4.5 Si 1.0-2.0 Cr 0.6-2.5 Ni 0.6-2.5 Mo+½W Up to 0.5 Cu 0.3-1.0 Co 0.01 max. V+ 5/9 Nb 0.1-0.5 Ti 0.025 max. Al 0.025 max. Ca 0.005 max. N 0.02 max. The balance is iron and the usual impurities, wherein the impurities include not more than about 0.03% phosphorus and not more than about 0.003% sulfur. The alloy is further defined by containing Si, Cu, V, and optionally Nb such that 2 ‰¤ (%Si + %Cu)/(%V+(5/9) x %Nb)‰¤ 34.
IPC 8 full level
C22C 38/58 (2006.01); C21D 1/18 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/34 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/52 (2006.01)
CPC (source: EP US)
C21D 1/18 (2013.01 - EP US); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/34 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US); C21D 1/58 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2886675 A2 20150624; EP 2886675 A3 20150805; EP 2886675 B1 20190522; ES 2743175 T3 20200218; JP 2015134962 A 20150727; JP 6099103 B2 20170322; PL 2886675 T3 20191129; US 2015176109 A1 20150625; US 2019048447 A1 20190214
DOCDB simple family (application)
EP 14199446 A 20141219; ES 14199446 T 20141219; JP 2014257823 A 20141219; PL 14199446 T 20141219; US 201414572888 A 20141217; US 201816161808 A 20181016